[PATCH v5 14/39] dt-bindings: spi: Add Cirrus EP93xx

[Nikita Shubin via B4 Relay <devnull+nikita.shubin.maquefel.me@xxxxxxxxxx>]

From: Nikita Shubin <nikita.shubin@xxxxxxxxxxx>

Add YAML bindings for ep93xx SoC SPI.

Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
Signed-off-by: Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
---
 .../devicetree/bindings/spi/cirrus,ep9301-spi.yaml | 70 ++++++++++++++++++++++
 1 file changed, 70 insertions(+)

diff --git a/Documentation/devicetree/bindings/spi/cirrus,ep9301-spi.yaml b/Documentation/devicetree/bindings/spi/cirrus,ep9301-spi.yaml
new file mode 100644
index 000000000000..ba249840e7e5
--- /dev/null
+++ b/Documentation/devicetree/bindings/spi/cirrus,ep9301-spi.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/spi/cirrus,ep9301-spi.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: EP93xx SoC SPI controller
+
+maintainers:
+  - Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>
+  - Nikita Shubin <nikita.shubin@xxxxxxxxxxx>
+
+allOf:
+  - $ref: spi-controller.yaml#
+
+properties:
+  compatible:
+    oneOf:
+      - const: cirrus,ep9301-spi
+      - items:
+          - enum:
+              - cirrus,ep9302-spi
+              - cirrus,ep9307-spi
+              - cirrus,ep9312-spi
+              - cirrus,ep9315-spi
+          - const: cirrus,ep9301-spi
+
+  reg:
+    items:
+      - description: SPI registers region
+
+  interrupts:
+    maxItems: 1
+
+  clocks:
+    items:
+      - description: SPI Controller reference clock source
+
+  dmas:
+    items:
+      - description: rx DMA channel
+      - description: tx DMA channel
+
+  dma-names:
+    items:
+      - const: rx
+      - const: tx
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/gpio/gpio.h>
+    #include <dt-bindings/soc/cirrus,ep9301-syscon.h>
+    spi@808a0000 {
+        compatible = "cirrus,ep9301-spi";
+        reg = <0x808a0000 0x18>;
+        interrupt-parent = <&vic1>;
+        interrupts = <21>;
+        clocks = <&syscon EP93XX_CLK_SPI>;
+        dmas = <&dma1 10 2>, <&dma1 10 1>;
+        dma-names = "rx", "tx";
+        cs-gpios = <&gpio5 2 GPIO_ACTIVE_HIGH>;
+    };

-- 
2.41.0